#include <stdio.h>
#include <unistd.h>
int main(){
    char    *arglist[3];
        arglist[0] = "ls";
	    arglist[1] = "-l";
	        arglist[2] = 0 ;
		    printf("* * * About to exec ls -l\n");
		        execvp( arglist[0] , arglist );
			    printf("* * * ls is done. bye\n");
			    }
